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# SCNBufferFrequency.perShadable

Execute the binding handler once for each frame, for each node, for each material or geometry to be rendered using the shader.

```
case perShadable
```

## Discussion

Use this option when the contents of the buffer should be specific to each geometry or material whose program property is set to this shader. For example, a material-specific buffer might contain information to be used in animating a texture.

---

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